Inventor · disambiguated record
Atsushi Hamamura
Also filed as: HAMAMURA ATSUSHI
5 granted patents·91 citations·filing 1988–1994
82Inventor score
Files withSUMITOMO SPEC METALS5
Top patents by PatentIndex Score
5 records- 0180US4942098ACorrosion resistant permanent magnetSUMITOMO SPEC METALS·Filed 1988·Granted Jul 17, 1990·24 cites·14 claims
- 0273US5281250APowder material for rare earth-iron-boron based permanent magnetsSUMITOMO SPEC METALS·Filed 1992·Granted Jan 25, 1994·27 cites·18 claims
- 0371US4959273ACorrosion-resistant permanent magnet and method for preparing the sameSUMITOMO SPEC METALS·Filed 1989·Granted Sep 25, 1990·22 cites·44 claims
- 0463US4968529AProcess for producing a corrosion resistant permanent magnetSUMITOMO SPEC METALS·Filed 1989·Granted Nov 6, 1990·13 cites·23 claims
- 0536US5387356AProcess of producing calcined materials for ferrite magnetSUMITOMO SPEC METALS·Filed 1994·Granted Feb 7, 1995·5 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →